EP3641960B1 - Anlage zur herstellung einer verstärkungsstruktur eines biegsamen rohrs, verfahren dafür und system mit dieser anlage - Google Patents

Anlage zur herstellung einer verstärkungsstruktur eines biegsamen rohrs, verfahren dafür und system mit dieser anlage Download PDF

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Publication number
EP3641960B1
EP3641960B1 EP18732789.5A EP18732789A EP3641960B1 EP 3641960 B1 EP3641960 B1 EP 3641960B1 EP 18732789 A EP18732789 A EP 18732789A EP 3641960 B1 EP3641960 B1 EP 3641960B1
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EP
European Patent Office
Prior art keywords
main
profiling
supplementary
strip
additional
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EP18732789.5A
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English (en)
French (fr)
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EP3641960A1 (de
Inventor
Benoît SACILOTTO
Michael Bouvier
Etienne Desbazeille
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TechnipFMC Subsea France SAS
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Technip N Power SAS
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Publication of EP3641960A1 publication Critical patent/EP3641960A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/123—Making tubes or metal hoses with helically arranged seams of coated strip material; Making multi-wall tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • F16L11/083—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire three or more layers

Definitions

  • the invention relates to an installation for manufacturing a reinforcing structure for a flexible pipe for transporting an oil and / or gas fluid in an underwater environment, the associated method and a system comprising said installation.
  • a field of application envisaged is the manufacture of an internal carcass and / or of a pressure vault of a flexible underwater pipe intended for the transport of petroleum and / or gas fluid.
  • flexible pipes for transporting an oil and / or gas fluid in an underwater environment are immersed in a body of water at depths which may exceed 3000 m. They are particularly useful in the routing of petroleum and / or gas fluid between a downhole installation and a surface installation. They can also be used to connect two downhole installations. Some flexible pipes can also be used to connect two surface installations.
  • API RP 17B 5th edition, published in May 2014
  • API 17J 4th edition, published in May 2014 by the American Petroleum Institute .
  • a flexible pipe comprises an internal sealing sheath more commonly called “pressure sheath” defining an internal passage for circulation of the petroleum and / or gas fluid.
  • the tensile armor ply is generally composed of a plurality of layers of metal elements, generally two, wound in a helix.
  • a protective polymeric outer sheath is generally arranged around the flexible pipe.
  • the flexible pipe is also subjected to a very high external pressure when it is submerged to great depth, for example 250 bar when the pipe is submerged to a depth of 2500 m.
  • a very high external pressure When this external pressure becomes markedly greater than the internal pressure, there is a risk of collapse of the flexible pipe.
  • the petroleum and / or gas fluid transported is composed, in addition to oils and solid particles, of gases such as carbon dioxide (CO 2 ) and hydrogen disulfide (H 2 S). These gases tend to diffuse through the internal sealing sheath and to accumulate within the space formed by the internal sealing sheath and the external protective layer, called “annular space” thus causing the increase. of the pressure within said annular space.
  • This internal reinforcement structure comprises a main section wound with a helix angle of an absolute value close to 90 °.
  • the section of the main profile is S-shaped.
  • the flexible pipes comprising a carcass are then said to have a non-smooth passage (called “rough bore” in English).
  • the presence of the joints causes pressure fluctuations in the flow of petroleum and / or gas fluid resulting in vibratory phenomena, or even, when resonance is reached, in phenomena of pulsation induced by the circulation of the fluid (known as “flow induced pulsation” in English).
  • the pulsations induced by the circulation of the fluid are liable to promote the fatigue of the related equipment to which the flexible pipes are connected as well as the fatigue of the means of connections between said flexible pipes (welds, flanges, etc.).
  • premature fatigue of the related equipment and / or of the connection means can lead to disasters which can have serious human as well as economic consequences.
  • the use of a carcass comprising a main section and an additional section making it possible to fill in the gaps remains problematic.
  • the patent application WO2015 / 121424 proposes for example to use a single installation comprising two profiling trains arranged on the same turntable allowing the shaping of metal strips intended to form the carcass.
  • the two profiling trains are, according to the embodiments described in the patent application WO2015 / 121424 , superimposed or diametrically opposed to the turntable.
  • downstream of the profiling trains the main section and the additional section are combined and bent around a mandrel to form the carcass.
  • the main profile and the additional profile combined are in particular pushed up to the mandrel by means of driving members located downstream of the profiling trains.
  • the driving members comprise two rollers driven in rotation between which the main section and the additional section combined are received and pushed to the mandrel.
  • the presence of driving members downstream of the profiling trains intended to push the main section and the additional section can cause assembly problems of the carcass. Indeed, downstream of the profiling trains, and in particular on the chuck there is a speed differential between the main profile and the additional profile.
  • the additional profile is bent around the mandrel and forms the innermost layer of the carcass.
  • the main section is curved around the additional section and forms the outermost layer of the carcass.
  • the distance traveled around the mandrel and the length of the additional profile around the mandrel is less than the distance and length of the main profile.
  • the driving members together push the main section and the additional section with the same speed.
  • the insertion of the additional profile within the turns formed by the main profile on the mandrel is not done correctly. Consequently, geometric defects in the reinforcing structure can result from such an installation, and thus reduce the mechanical performance of the reinforcing structure.
  • the flexible pipe can comprise a reinforcing structure arranged around the internal sealing sheath.
  • a reinforcing structure is added in order to prevent the bursting of the internal sealing sheath.
  • This type of reinforcement structure is known in the field of the present invention under the terms of “pressure vault”.
  • the pressure vault comprises a main section, generally metallic, having a complex section and wound around the internal sealing sheath at a short pitch, that is to say with a helix angle whose absolute value is close to 90 °. Between two adjacent turns formed by the winding of the main section, there is a gap opening towards the internal space of the flexible pipe.
  • a pressure vault comprising a main section and an additional section also remains problematic, like the use of the carcass.
  • the installation according to the invention is remarkable in that the pair or pairs of additional lower and upper rollers of said or all of said additional profiling heads are mounted to rotate freely with respect to said plate.
  • the main profiling head is configured to receive a thickness (e1) of the main strip and the additional profiling head is configured to receive a thickness (e2) of the additional strip, said thickness (e1 ) being equal to or greater than said thickness (e2).
  • the main strip according to this embodiment is thicker than the additional strip.
  • the thickness of the main profile is generally greater than the thickness of the additional profile. The force for driving the additional section through the main section is thus reduced compared to the force that would have been exerted in the context of driving an additional section thicker than the main section.
  • the risks of buckling of the main section downstream of the first profiling train are reduced as soon as the force to be brought into play to pull the additional section is reduced.
  • the main section generally has a more complex section than that of the additional section.
  • the forces making it possible to bend the main strip according to the desired section are therefore generally greater than those involved in bending the additional strip.
  • the risks of damaging the main section by pulling downstream of the first profiling train are greater than by pulling on the additional section. In order to maintain the integrity of the main profile it is therefore preferable to push it and pull the additional profile.
  • the pair of additional lower and upper rollers is able to bend the strip. additional in an S-shaped or T-shaped section.
  • Profiling of the additional strip by the additional rollers in an S-shaped or T-shaped section makes it possible to form an additional profile which can be inserted within the gaps formed by the stapling of the main profile .
  • the lower and / or upper main roller is respectively arranged in the axis of the lower and / or upper additional roller.
  • the first profiling train and the second profiling train share the same frames and the same shafts on which the main and additional profiling head or heads are mounted.
  • the modifications to be provided on the plate are minor and the pre-existing reinforcing structure manufacturing facilities can thus be easily modified to accommodate the second profiling train.
  • the plate is movable in rotation about its axis, which makes it possible to produce a reinforcing structure of very great length by helical winding of the profiles coming from the profiling trains.
  • the installation also comprises a means for driving the plate in rotation, for example an electric motor.
  • the means for driving the plate in rotation not only makes it possible to continuously produce a reinforcing structure of great length, but also to reduce the forces exerted by the two profiling trains by assisting them in particular during the bending of the two profiles downstream of the sections. profiling trains, which facilitates the winding of these two strips by the winding means to form the reinforcing structure.
  • the winding means advantageously comprises a support member intended to support the main section and the additional section downstream of the first and second profiling train.
  • the support member comprises a mandrel movable around its axis. This makes it possible to facilitate the release of the reinforcing structure from the mandrel without jamming or seizing of the additional profile on the mandrel.
  • the installation comprises a device for driving the mandrel making it possible to drive said mandrel at a speed of rotation at least forty times lower than the speed of rotation of the plate. Too high a rotational speed of the mandrel risks damaging both the reinforcing structure and the mandrel by friction and heating resulting from the sliding movement of the reinforcing structure against the mandrel. With a speed of rotation of the mandrel at least forty times lower than the speed of rotation of the plate, on the other hand, it is possible to limit the heating generated by the friction between the reinforcement structure and the mandrel. Accordingly, it is possible to achieve the release of the reinforcing structure without damaging the equipment or the reinforcing structure.
  • the winding means comprises a plurality of plating members arranged around the support member making it possible to press and possibly bend the main section and the additional section around the support member thus facilitating its Assembly.
  • the installation comprises a main reel of the main strip and a secondary reel of the additional strip, said main and secondary reels being arranged on the plate upstream of the first and second profiling train.
  • the invention also relates to a system for the manufacture of a flexible pipe comprising an installation for the manufacture of a reinforcing structure as mentioned above, a device for manufacturing an internal sealing sheath, a device for manufacturing a 'a layer of tensile armor.
  • the system has all the advantages mentioned above.
  • a flexible pipe (2) for transporting an oil and / or gas fluid in an underwater environment is for example shown in the figure.
  • Figure 1 Such a flexible pipe (2) is in particular described in the normative documents API RP 17B, 5th edition, published in May 2014 and API 17J, 4th edition, published in May 2014 by the American Petroleum Institute .
  • the flexible pipe (2) extends for example between a downhole installation and a surface installation, between two downhole installations or between two surface installations.
  • the downhole installation is for example a manifold (called "manifold” in English).
  • the surface installation can be a floating storage and unloading unit generally called FPSO (“Floating Production Storage and Offloading”), a trellis-type structure (“jacket”) or an unloading buoy.
  • the underwater environment in which the flexible pipe (2) is intended to be installed may be a lake, sea or ocean.
  • the depth of the seabed can be around 100 m, 1000 m, 2000 m, or even greater than 3000 m.
  • the flexible pipe (2) typically comprises an internal sealing sheath (3) forming a sealed internal passage for the circulation of the petroleum and / or gas fluid.
  • the internal sealing sheath (3) is generally formed of a polymer such as a polyolefin of the polyethylene (PE), high density polyethylene (HDPE) type or of a polyamide such as a polyamide 11 (PA11) or polyamide. 12 (PA12) or of a fluoropolymer of the polyvinylidene fluoride (PVDF) type.
  • the thickness of the internal sealing sheath (3) is for example between 5 mm and 20 mm. It is generally carried out by extrusion.
  • the flexible pipe (2) generally comprises at least one layer of tensile armor (5) intended to take up the tensile forces linked mainly to the weight of the flexible pipe (2).
  • the tensile armor ply (5) generally comprises two tensile armor layers (6, 7) formed from a plurality of armor threads wound in a long pitch around the flexible pipe (2).
  • the armor wires can be metallic or in composites formed from carbon fiber in order to reduce the total weight of the flexible pipe (2).
  • the section of the armor son is for example rectangular, circular or any other section suitable for the present application.
  • the flexible pipe (2) may include an outer protective sheath (9) arranged around the tensile armor ply (5).
  • the outer protective sheath (9) generally comprises a polymeric material such as a polyolefin of the polypropylene (PP) or polyethylene (PE) type, a polyamide (PA) or any other material suitable for the present application.
  • the thickness of the outer protective sheath (9) is for example between 5 mm and 15 mm and it is generally produced by extrusion.
  • the flexible pipe (2) may optionally include a set of electrical and / or optical cables (not shown) allowing the heating and control of the temperature of the flexible pipe (2) and / or tubes for the injection of gas, water or any other type of fluid.
  • a flexible pipe (2) is in particular known in the field of the present invention by the acronym IPB (“Integrated Production Bundle”).
  • the flexible pipe (2) comprises at least one reinforcement structure (8) making it possible to take up the radial forces exerted on the flexible pipe (2).
  • the flexible pipe (2) shown in Figure 1 comprises for example two reinforcement structures (8).
  • the reinforcement structure (8) is a flexible tubular element arranged coaxially around and / or inside the internal sealing sheath (3).
  • the reinforcement structure (8) comprises a main section (8a) wound with a short pitch, that is to say that the absolute value of the helix angle is close to 90 °, generally between 75 ° and 90 °.
  • Each turn of the main section (8a) is stapled to an adjacent turn making it possible to take up the radial forces exerted on the flexible pipe (2).
  • the main section (8a) is generally metallic and has a thickness generally between 1 mm and 6 mm and in particular between 1.5 mm and 4 mm.
  • the turns of the main section (8a) define a gap (80) making it possible to ensure the flexibility of the flexible pipe (2).
  • This gap is partially or even completely closed by an additional section (8b).
  • the additional profile (8b) is generally metallic and has an S-shaped or T-shaped section which can be inserted at the level of the gap (80) of the main profile (8a).
  • the thickness of the main profile (8a) is generally equal to or greater than the thickness of the additional profile (8b).
  • the additional profile (8b) has a thickness between 0.5 mm and 5 mm and more particularly between 0.8 mm and 1.5 mm.
  • the Figure 2 shows a first example of a reinforcement structure (8).
  • the reinforcing structure (8) is arranged inside the internal sealing sheath (3) and thus constitutes the innermost layer of the flexible pipe (2).
  • the reinforcement structure (8) is then intended to come into contact with the petroleum and / or gas fluid.
  • Such a reinforcing structure (8) is known in the field of the present invention under the term of carcass or internal carcass.
  • the flexible pipe (2) is subjected to a very high external pressure when it is submerged to a great depth, for example around 250 bar at a depth of 2500 m, which can lead to risks of collapse. ) of the flexible pipe (2).
  • the internal sealing sheath (3) and the external protective sheath (9) form an annular space in which fine gas particles contained in the petroleum and / or gas fluid tend to migrate through the internal sheath. sealing (3).
  • the gases are trapped within the annular space causing an increase in the pressure within said annular space. This pressure can in certain cases become greater than the pressure inside the flexible pipe (2) and lead to the collapse of the internal sealing sheath (3).
  • the reinforcing structure (8) is arranged inside the flexible pipe.
  • the main profile (8a) has an S-shaped section. After stapling, the turns define a gap (80) opening radially towards the inside of the flexible pipe (2) giving a rough appearance to the internal surface of the flexible pipe (2).
  • the latter is thus said to have a non-smooth passage (“rough bore” in English).
  • the joint (80) tends to disturb the flow of petroleum and / or gas fluid, in particular by creating pressure differentials. We then observe vibratory phenomena, even, when a resonance is reached, phenomena of pulsation induced by the circulation of the fluid (known as “flow induced pulsation” in English). These phenomena tend to accelerate the fatigue of related equipment and more particularly of the connection means (welding, flange, etc.).
  • the additional profile (8b) is arranged within the gap (80).
  • the Figure 2 shows for example the additional profile (8b) having a T-shaped section. More particularly, the section of the additional profile (8b) defines a central branch extending radially within the gap (80) and two free ends extending along the main profile (8a).
  • a groove (not shown) can be provided on the internal and / or external surface of the additional profile (8b).
  • the groove extends for example from the gap (80) formed by the main section (8a) to the free end of the additional section (8b).
  • This groove makes it possible to facilitate the flow of petroleum and / or gas fluid between the joint (80) and the internal passage of the flexible pipe (2).
  • the Figure 3 shows a second embodiment of the reinforcement structure (8).
  • This second example can be taken in combination with the first embodiment of the reinforcing structure (8), the flexible pipe (2) then comprises two reinforcing structures (8) or alternatively of the first embodiment, the flexible pipe ( 2) then comprises a reinforcement structure (8) according to the second example.
  • Such a flexible pipe (2) is then said to have a smooth passage (“smooth bore” in English).
  • the reinforcing structure (8) is arranged around the internal sealing sheath (3) and more particularly between the internal sealing sheath (3) and the layer of tensile armor (5).
  • the flexible pipe (2) is subjected to an internal pressure linked to the circulation of the petroleum and / or gas fluid which can reach 200 bar or even more, which can lead to the bursting of the flexible pipe (2).
  • the reinforcing structure (8) is arranged around the internal sealing sheath (3).
  • the main section (8a) has a cross section of complex geometry formed for example of three main parts.
  • the first part is in the form of a trapezoidal box from which the second part of the main profile (8a) extends and forms an arc of a circle, the apex of which is oriented towards the outside of the flexible pipe (2).
  • the third part forms a bearing surface of constant section on which the first part of an adjacent coil is wound and the end of which extends radially within the arc of said adjacent coil. This makes it possible to form the stapling of the main section (8a).
  • the internal space of the arc formed by the second part of the main section (8a) forms the gap (80) which opens radially on the internal sealing sheath (3).
  • the internal sealing sheath (3) can creep within the gap (80) leading to risks of damage to the internal sealing sheath (3).
  • the gap (80) is therefore partially or even completely filled by the additional profile (8b).
  • the section of the additional profile (8b) defines a central branch extending radially within the gap (80) and two free ends extending respectively along a part of the third part of a turn of the profile. main (8a) and part of the third part of an adjacent turn of the main section (8a). More particularly, the central branch of the additional section (8b) coexists within the gap (80) with the end of the third part of the main section (8a).
  • the reinforcement structure (8) can comprise a mechanical reinforcement inserted into the turns of the main section (8a) in order to improve resistance to radial forces exerted on the flexible pipe (2).
  • a mechanical reinforcement makes it possible to limit the deformation of the turns of the main section (8a) under the effect of pressure.
  • the manufacture of such a reinforcing structure (8) is carried out in several stages by an installation (1) according to the invention shown for example on the Figures 4 and 5 .
  • the main section (8a) and the additional section (8b) are respectively profiled from a main strip (81a) and an additional strip (81b) respectively within a first profiling train (11) and d 'a second profiling train (12) arranged on the same plate (10) of the installation (1).
  • Winding means then make it possible to wind the main section (8a) and the additional section (8b) in order to form a tubular structure forming the reinforcement structure (8).
  • the various elements of the installation (1) can be arranged on the plate (10), and in particular the first profiling train (11) and the second profiling train (12). Compared to installations for which these elements are arranged outside the platform (10) on production sites, the platform (10) makes it possible to bring together the various elements of the installation (1) and thus to reduce its overall dimensions. on said production sites.
  • the length of the reinforcing structure (8) can be of the order of several tens of meters to several hundreds of meters.
  • the flexible pipe (2) equipped with the reinforcement structure (8) is generally intended to be wound on storage reels after its manufacture. In order to allow this storage, the flexible pipe (2) equipped with the reinforcement structure (8) is generally blocked in rotation about its longitudinal axis.
  • the plate (10) is advantageously movable in rotation.
  • the speed of rotation of the plate (10) is generally between a few rpm such as 5 rpm or 10 rpm and 60 rpm.
  • the installation also comprises a means for driving the plate in rotation, for example an electric motor.
  • the geometry of the plate (10) this can be of any shape suitable for the present invention, for example polygonal or circular.
  • a plate (10) of substantially circular shape will still be preferred.
  • the plate (10) is for example circular with center A and is for example made of steel.
  • the installation (1) according to the invention may comprise a main reel (25a) of the main strip (81a) and a secondary reel (25b) of the additional strip (81b).
  • the main reel (25a) enables the main strip (81a) to be delivered to the first profiling train (11) arranged on the plate (10) downstream of said main reel (25a).
  • the main reel (25a) in connection with the main strip (81a) will be detailed in the remainder of the description.
  • the main unwinder (25a) can be arranged upstream of the plate (10), or directly on the plate (10) and more particularly on the front face of the plate (10) as shown for example on the Figures 4 and 5 .
  • the main unwinder (25a) is in particular mounted to rotate freely on a shaft fixed to the plate (10).
  • the unwinding of the main strip (81a) is braked by a friction element which may for example be a pad arranged on the shaft and in contact with the main reel (25a) or arranged on the main reel (25a) and in contact with the 'tree.
  • the main unwinder (25a) may for example be composed of a substantially circular body around which the main strip (81a) can be wound.
  • the main strip (81a) can define a curved line.
  • curved line it is understood that at least three consecutive points passing through said line are not aligned along a rectilinear line.
  • the installation (1) can then comprise guide members (26) arranged on the plate (10) along the main strip (81a), between the main reel (25a) and the first profiling train (11) such as in particular represented on the Figure 5 .
  • the guide members (26) can be, for example, rollers or any other element making it possible to guide the main strip (81a) towards the first profiling train (11).
  • the guide members (26) may for example be two, three, four or even more depending on the distance and the curvature of the main strip (81a).
  • the main strip (81a) is thus guided towards the first profiling train (11) in which it is profiled according to a section as defined above.
  • the first profiling train (11) includes at least one main profiling head (13) configured to receive the main strip (81a).
  • the main profiling head (13) is formed by a pair of lower and upper main rollers (13a, 13b) capable of bending the main strip (81a).
  • the circumference of the lower and upper main rollers (13a, 13b) defines a series of peaks and valleys allowing to form a relief in which the main strip (81a) is profiled.
  • the average diameter of the main rollers (13a, 13b) is for example between 40 mm and 200 mm. This average diameter may vary depending on the main profiling heads (13).
  • the mean diameter of a roller is understood to mean the average of the values taken between the peaks and hollows of said roller.
  • the pair of lower and upper main rollers (13a, 13b) form a first passage (15) in which the main strip (81a) is inserted.
  • the pair of lower and upper main rollers (13a, 13b) bends the main strip (81a) following the relief formed by the pair of lower main rollers and upper (13a, 13b).
  • the folding is generally carried out gradually.
  • the first profiling train (11) can comprise a plurality of main profiling heads (13) arranged in series.
  • the number of profiling heads is generally chosen according to the complexity of the profile according to which the main strip (81a) is intended to be profiled and its thickness before and after profiling.
  • the first profiling train (11) may comprise two, three, four, five or six main profiling heads (13) or even more, each of the heads comprising a pair of lower and upper main rollers (13a, 13b) defining a relief according to which the main strip (81a) is successively folded until the section of the main profile (8a) defined above is obtained.
  • the first profiling train (11) generally comprises between six to ten main profiling heads (13).
  • the lower and upper main rollers (13a, 13b) are respectively mounted on a lower (17a) and upper (17b) shaft.
  • the latter are preferably mounted removably on a frame integral with the plate (10).
  • the lower (17a) and upper (17b) shafts are thus more easily interchangeable, which facilitates maintenance of the installation (1) in the event of wear, for example.
  • radial forces are exerted on the lower (17a) and upper (17b) shafts which tend to separate them from one another.
  • lower (18a) and upper (18b) bezels are respectively arranged on the end of the shafts.
  • lower (17a) and upper (17b) opposite the ends fixed to the frame.
  • the lower (18a) and upper (18b) bezels are for example mounted on a bearing and interconnected by means of bolts the tightening level of which makes it possible to adjust the distance between said lower (18a) and upper (18b) bezels.
  • the lower (17a) and upper (17b) shafts comprise means for blocking in translation (21) the lower and upper main rollers (13a, 13b).
  • a washer and nut assembly (21a, 21b) is screwed onto a threaded end of the lower (17a) and upper (17b) shafts.
  • the lower (17a) and upper (17b) shafts may have a shoulder (21c) on which the lower and upper main rollers (13a, 13b) abut.
  • the lower shaft (17a) and / or the upper shaft (17b) and hence, the lower and / or upper main roller (13a, 13b ) one or more main profiling heads (13) is rotated.
  • the lower or upper main roller (s) (13a, 13b) optionally not driven are mounted to rotate freely.
  • the lower and / or upper main roller (13a, 13b) driven in rotation generally comprises a stop in rotation (19) on the lower (17a) and / or upper (17b) shaft.
  • a groove can be provided on the lower (17a) and / or upper (17b) shaft and on the lower and / or upper main roller (13a, 13b) driven in rotation.
  • this groove can be housed a key intended to respectively block in rotation on the lower shaft (17a) and / or upper (17b) the lower and / or upper main roller (13a, 13b).
  • certain lower and / or upper main rollers (13a, 13b) are optionally not driven (not shown).
  • the latter are generally mounted on bearings, which may be cylindrical bearings of the sintered or self-lubricating type or bearings of the ball or needle bearing type or any other type of bearing well known to those skilled in the art.
  • the installation (1) comprises a drive device (not shown) of the main profiling head (13). More particularly, the drive device comprises a motor intended to drive in rotation at least one lower (17a) and / or upper (17b) shaft relative to the plate (10) and hence at least one lower main roller and / or upper (13a, 13b).
  • the drive device comprises a motor intended to drive in rotation at least one lower (17a) and / or upper (17b) shaft relative to the plate (10) and hence at least one lower main roller and / or upper (13a, 13b).
  • the drive device may comprise one or a plurality of motors intended to drive a plurality of lower (17a) and / or upper (17b) shafts.
  • Lower (17a) and / or upper shafts (17b), and hence the lower and / or upper main rollers (13a, 13b) can be driven with a similar or variable speed of rotation.
  • the training device can include a movement transmission mechanism.
  • the latter comprises for example a belt assembly or a simple or epicyclic gear train in which the diameter of the toothed wheels is chosen according to the speed of rotation to be transmitted to the lower (17a) and / or upper (17b) shaft.
  • the movement transmission mechanism may comprise a transmission shaft connected to a universal joint.
  • the transmission mechanism is in no way limited to these particular examples and can be composed of other systems well known to those skilled in the art.
  • the lower and / or upper main rollers (13a, 13b) driven by the drive device drive the main strip (81a) within the first passage (15) and bend it.
  • the main strip (81a) is then generally in tension upstream of the first profiling train (11) and downstream, the main section (8a) is pushed.
  • the latter comprises at least one additional profiling head (14) configured to receive the additional strip (81b).
  • the additional profiling head (14) comprises a pair of additional lower and upper rollers (14a, 14b) adapted to bend the additional strip (81b).
  • the pair of additional lower and upper rollers (14a, 14b) form a second passage (16) into which the additional strip (81b) is inserted.
  • the additional strip (81b) generally has a thickness (e2) less than or equal to the thickness (e1) of the main strip (81a).
  • the main strip (81a) has a thickness (e1) of between 1 mm and 6 mm and the additional strip (81b) has a thickness (2) of between 0.5 mm and 5 mm.
  • the section of the additional profile (8b) is less complex than the section of the main profile (8a).
  • the second profiling train (12) generally comprises fewer additional profiling heads (14) than the first profiling train (11).
  • the pair of lower and upper additional rollers (14a, 14b) is adapted to bend the additional strip (81b) into an S or T-shaped section.
  • the lower and upper pair or pairs of additional rollers (14a, 14b) of said or all of said additional profiling heads (14) are mounted to rotate freely with respect to the plate (10).
  • the second profiling train (12) comprises several additional profiling heads (14)
  • all of the pairs of additional rollers (14a, 14b) of the set of additional profiling (14) are mounted to rotate freely relative to the plate (10).
  • the additional rollers (14a, 14b) are mounted on bearings (20) as described above.
  • the additional strip (81b) is driven within the second passage (16) mainly by friction between the main section (8a) and the additional section (8b) downstream of the first profiling train (11) and the second profiling train (12). This operation is all the more facilitated as the thickness of the additional section (8b) is less than the thickness of the main section (8a).
  • the additional profile (8b) is in traction downstream of the first and second profiling train (11, 12). This also makes it possible to maintain the integrity of the main section (8a) in particular insofar as the risks of buckling but also the risks of plastic deformation which can lead to cracks of the main section (8a) at the exit of the first profiling train (11 ) are reduced.
  • the first and the second profiling train (11, 12) are arranged in parallel.
  • the axis of the lower (17a) and upper (17b) shafts on which the lower and upper main rollers (13a, 13b) and the lower and upper additional rollers (14a, 14b) are respectively mounted are parallel and removably mounted on a frame common integral with the plate (10).
  • At least one of the lower or upper additional rollers (14a, 14b) is respectively arranged in the axis of at least one of the rollers main inferior or superior (13a, 13b).
  • the lower or upper main rollers (13a, 13b) are respectively arranged on the same lower (17a) or upper (17b) shaft as the lower or upper additional rollers (14a, 14b).
  • the lower (17a) and upper (17b) shafts have means for blocking in translation (21) the lower and upper main rollers (13a, 13b) and additional lower and upper (14a, 14b).
  • a washer and nut assembly (21a, 21b) is provided on a threaded end of the lower (17a) and upper (17b) shafts.
  • the lower (17a) and upper (17b) shafts comprise a shoulder (21c) on which the lower and upper main rollers (13a, 13b) or the lower and upper additional rollers (14a, 14b) can come to a stop.
  • a spacer (21d) can be respectively arranged between the lower main roller (13a) and the lower additional roller (14a).
  • a spacer (21d) is also arranged between the upper main roller (13b) and the upper additional roller (14b).
  • the lower (18a) and upper (18b) bezels are respectively arranged on the threaded end of the lower (17a) and upper (17b) shafts opposite the ends fixed to the frame.
  • This particular embodiment makes it possible to simplify the assembly of the second profiling train (12) in that the additional lower and upper rollers (14a, 14b) can be directly arranged on the lower (17a) and upper (17b) shafts of the first. profiling train (11).
  • the installation (1) comprises a means for winding the main section (8a) and the additional section (8b).
  • the winding means advantageously comprises a support member (23) intended to support the main section (8a) and the additional section (8b). Indeed, the winding and bending of the main section (8a) and the additional section (8b) to form a tubular structure causes significant radial forces which can crush the reinforcement structure (8) being formed.
  • the support member (23) thus forms a mechanical support structure on which significant radial forces can be exerted without damaging the reinforcement structure (8) being formed during the bending and winding of the main section. (8a) and the additional profile (8b).
  • the support member (23) is formed of a cylindrical structure extending coaxially projecting from the plate (10).
  • the support member (23) comprises for example a mandrel.
  • This example is particularly advantageous when the reinforcing structure (8) constitutes the innermost layer of the flexible pipe (2), such as the carcass.
  • the mandrel is generally made of steel.
  • the mandrel has a substantially cylindrical section with a conical end and has a diameter taken along the largest base, for example between 25 mm and 635 mm.
  • a drive device makes it possible to drive the mandrel in rotation around the axis (A-A ').
  • the speed of rotation of the mandrel is preferably at least forty times lower than the speed of rotation of the plate (10).
  • the rotation of the mandrel is generally the reverse relative to the plate (10) which tends to locally increase the diameter of the reinforcement structure (8) and to allow its release from the mandrel without jamming.
  • the rotational speeds of the mandrel, the plate (10) and the lower and upper main rollers (13a, 13b) can be such that the main section (8a) is in tension downstream of the first and second profiling train ( 11, 12).
  • the invention also applies to a particular embodiment of the invention in which the main section (8a) section is subjected to a tensile stress downstream of the first profiling train (11).
  • a mandrel lubrication member for delivering lubricating fluid to the outer surface of the mandrel in contact with the reinforcing structure (8) may also be provided in order to reduce the coefficient of friction between the outer surface of the mandrel and the additional profile.
  • the lubrication member is for example composed of a plurality of injection orifices arranged in the mandrel and distributed over the length of the mandrel making it possible to allow the passage of the lubricating fluid over the outer surface of the mandrel.
  • the lubricating fluid is for example a hydrocarbon fluid.
  • the coefficient of friction between the outer surface of the mandrel and the reinforcing structure is for example less than 0.1 after lubricating the outer surface of the mandrel.
  • the mandrel can also include a surface coating which also makes it possible to reduce the coefficient of friction between the external surface of the mandrel and the additional profile (8b).
  • the surface coating is formed by a layer of chromium.
  • the winding means advantageously comprises a plurality of plating members (24) making it possible to facilitate the assembly of the main section (8a) with the additional section (8b). ) by maintaining and bending on the support member (23).
  • the winding means comprises four plating members (23) distributed around the support member (23).
  • the four plating members (23) can for example be regularly distributed around the support member (23) with an angular interval of between 50 ° and 70 ° and more particularly, with an angular interval of between 60 ° and 70 °.
  • the plating members (24) are for example rollers capable of plating and possibly bending the main section (8a) and the additional section (8b) assembled.
  • the plating members (24) are mounted to rotate freely.
  • Guide members (26) of the type described above can also be arranged between the first profiling train (11) and the support member (23) and / or the second profiling train (12) and the support member (23) in order to bring the main section (8a) and / or the additional section (8b) tangentially on the mandrel.
  • the installation (1) can also include one or more additional profiling trains (not shown) making it possible to profile one or more additional strips.
  • the installation (1) can be integrated into a system (100) for manufacturing the flexible pipe (2).
  • the system (100) comprises, in addition to the installation (1) described above, a device (101) for manufacturing the internal sealing sheath (3) arranged upstream or downstream of said installation (1).
  • the device (101) for manufacturing the internal sealing sheath (3) is for example an extrusion line arranged downstream of the installation (1) when the reinforcing structure (8) is arranged inside the the internal sealing sheath (3) such as a carcass or upstream of the installation (1) when the reinforcing structure (8) is arranged around the internal sealing sheath (3) such as an arch pressure.
  • the extrusion line comprises an extruder for forming the internal sealing sheath (3), a cooling member allowing the polymerization of the internal sealing sheath (3) and a traction member allowing the translation of the flexible pipe. (2) to a possible next device.
  • the system (100) can comprise a device (102) for manufacturing the tensile armor ply (5).
  • the device (102) for manufacturing the tensile armor ply (5) comprises several reels of tensile armor son feeding for example two traction heads, each forming the tensile armor layers (6, 7) .
  • the system (100) can also include a device (103) for manufacturing the outer protective sheath (9) arranged downstream of the device (102) for manufacturing the tensile armor ply (5).
  • the device (103) for manufacturing the outer protective sheath (9) is for example an extruder, similar to the device (101) for manufacturing the internal sealing sheath (3).
  • the system (100) can also include a device (104) for storing the flexible pipe (2).
  • the device (104) for storing the pipe flexible (2) is formed by a coil on which the flexible pipe (2) can be wound.
  • the system (100) may include, in addition to the aforementioned devices, additional devices for manufacturing and / or laying intermediate layers such as anti-wear strips, thermal insulation or mechanical reinforcements, or any other type of layers that may compose the layer.
  • flexible pipe (2) the system (100) can include an additional device for laying electrical and / or optical cables and / or tubes in an SZ configuration of the type described in the patent application. WO2014 / 091100 or in a helical configuration.
  • the main rollers (13a, 13b) and the additional rollers (14a, 14b) are selected making it possible to bend the main strip (81a) and the additional strip (81b) according to the sections as defined above.
  • Said main (13a, 13b) and additional (14a, 14b) rollers are then mounted on the respective lower (17a) and upper (17b) shafts.
  • the additional rollers (14a, 14b) are mounted on the shafts (17a, 17b) after mounting the rollers main (13a, 13b).
  • the additional rollers (14a, 14b) are advantageously further from the plate (10) than the main rollers (13a, 13b) which facilitates the profiling of the main strip (81a) and of the additional strip (81b).
  • the first profiling train (11) of the main strip (81a) is arranged on the plate (10).
  • the first profiling train (11) comprises the main profiling head (13) composed of the main rollers (13a, 13b) making it possible to bend the main strip (81a).
  • the driving device is advantageously coupled to the main profiling head (13) in order to drive the lower (17a) and / or upper (17b) shafts and hence the lower and / or upper main rollers (13a , 13b) in rotation during a following step (c).
  • the second profiling train (12) of the additional strip (81b) comprising the additional profiling head (14) is arranged on the plate (10).
  • the additional rollers (14a, 14b) for folding the additional strip (81b) and forming the additional profiling head (14) being mounted to rotate freely relative to the plate (10).
  • steps (a) and (b) can be performed simultaneously. Indeed, since the lower and upper additional rollers (14a, 14b) respectively share the same lower and upper shaft (17a, 17b) as the lower and upper main rollers (13a, 13b), then the latter can be preinstalled on said shafts, the installation of the first profiling train (11) thus involving the installation of the second profiling train (12).
  • a step (b ') of supplying the main strip (81a) and additional (81b) is carried out.
  • at least one reel of main strip (81a) and at least one reel of additional strip (81b) are respectively loaded onto the main unwinder (25a) and the secondary unwinder (25b).
  • the main strip (81a) and the additional strip (81b) are then respectively inserted within the first passage (15) formed by the main rollers (13a, 13b) and the second passage (16) formed by the additional rollers (14a, 14b).
  • step (c) the main profiling head (13) is driven.
  • the drive device is put into service by means of a control panel for example, rotating the lower (17a) and / or upper (17b) shaft in rotation and hence, the lower and / or upper main rollers (13a, 13b).
  • the rotating drive of said lower and / or upper main rollers (13a, 13b) drives the main strip (81a) through the first passage (15).
  • the driving of the main strip (81a) and the possible rotation of the plate (10) allows, by friction of the main (8a) and additional (8b) sections downstream of the first train of profiling (11) and the second profiling train (12), to pull the additional strip (81b) through the second passage (16).
  • a profiling step (d) is then carried out during the respective passage of the main (81a) and additional (81b) strips through the first passage (15) and the second passage (16), where they are respectively profiled by the main rollers lower and upper (13a, 13b) and the additional lower and upper rollers (14a, 14b).
  • the main section (8a) and the additional section (8b) are wound around a winding means following a tubular structure. More particularly, the main section (8a) and the additional section (8b) are wound around the support member (23) at a short pitch, between 75 ° and 90 °. Carrying out this folding step (e) is advantageously facilitated by the plating members (24) arranged around the support member (23).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Moulding By Coating Moulds (AREA)

Claims (12)

  1. Einrichtung (1) für die Herstellung einer Verstärkungsstruktur (8) einer flexiblen Leitung (2) für den Transport eines Erdöl- und/oder Gas-Fluids unter Wasser, aufweisend eine Platte (10), an welcher angeordnet ist:
    - eine erste Profilierungsbahn (11) eines Hauptbands (81a), welche mindestens einen Haupt-Profilierungskopf (13), welcher dazu eingerichtet ist, das Hauptband (81a) aufzunehmen, aufweist, wobei der mindestens eine Haupt-Profilierungskopf (13) mindestens ein Paar aus einer unteren und einer oberen Haupt-Rolle (13a, 13b) aufweist, welche dazu eingerichtet sind, das Hauptband (81a) zu biegen, um ein Hauptprofil (8a) zu bilden,
    - eine zweite Profilierungsbahn (12) eines Zusatzbands (81b), welche mindestens einen Zusatz-Profilierungskopf (14), welcher dazu eingerichtet ist, das Zusatzband (81b) aufzunehmen, aufweist, wobei der mindestens eine Zusatz-Profilierungskopf (14) mindestens ein Paar aus einer unteren und einer oberen Zusatz-Rolle (14a, 14b) aufweist, welche dazu eingerichtet sind, das Zusatzband (81b) zu biegen, um ein Zusatzprofil (8b) zu bilden,
    - ein Mittel zum Antreiben des mindestens einen Haupt-Profilierungskopfs (13),
    - ein Mittel zum Wickeln des Hauptprofils (8a) und des Zusatzprofils (8b), welches der ersten Profilierungsbahn (11) und der zweiten Profilierungsbahn (12) nachgelagert ist, um die Verstärkungsstruktur (8) zu bilden,
    gekennzeichnet dadurch, dass das Paar oder die Paare aus einer unteren und einer oberen Zusatz-Rolle (14a, 14b) des Zusatz-Profilierungskopfs oder aller Zusatz-Profilierungsköpfe (14) bezüglich der Platte (10) frei drehbar montiert sind.
  2. Einrichtung (1) nach dem Anspruch 1, gekennzeichnet dadurch, dass der Haupt-Profilierungskopf (13) dazu eingerichtet ist, eine Dicke (e1) des Hauptbands (81a) aufzunehmen, und dadurch, dass der Zusatz-Profilierungskopf (14) dazu eingerichtet ist, eine Dicke (e2) des Zusatzbands (81b) aufzunehmen, wobei die Dicke (e1) gleich oder größer der Dicke (e2) ist.
  3. Einrichtung (1) nach dem Anspruch 1 oder 2, gekennzeichnet dadurch, dass das Paar aus einer unteren und einer oberen Zusatz-Rolle (14a, 14b) dazu eingerichtet ist, das Zusatzband (81b) in einen S-förmigen oder T-förmigen Querschnitt zu biegen.
  4. Einrichtung (1) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass die untere und/oder oberen Haupt-Rolle (13a, 13b) jeweilig zugehörig in der Achse der unteren und/oder einer oberen Zusatz-Rolle (14a, 14b) angeordnet ist.
  5. Einrichtung (1) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass die Platte (10) um die Achse (A-A') drehbeweglich ist.
  6. Einrichtung (1) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass das Mittel zum Wickeln eine Abstützeinrichtung (23) aufweist, welche dazu eingerichtet ist, das Hauptprofil (8a) und das Zusatzprofil (8b) abzustützen.
  7. Einrichtung (1) nach dem Anspruch 6, gekennzeichnet dadurch, dass die Abstützeinrichtung (23) eine um die Achse (A-A') drehbewegliche Spindel aufweist.
  8. Einrichtung (1) nach dem Anspruch 7, gekennzeichnet dadurch, dass die Einrichtung aufweist eine Antriebsvorrichtung der Spindel, welche es erlaubt, die Spindel mit einer Drehzahl anzutreiben, welche mindestens vierzig-mal kleiner ist als die Drehzahl der Platte (10).
  9. Einrichtung (1) nach einem der Ansprüche 6 bis 8, gekennzeichnet dadurch, dass das Mittel zum Wickeln eine Mehrzahl von Plattierungseinrichtungen (24) aufweist, welche um die Abstützeinrichtung (23) herum angeordnet sind.
  10. Einrichtung (1) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass sie aufweist eine Haupt-Spule (25a) des Hauptbands (81a) und eine Sekundär-Spule (25b) des Zusatzbands (81b), wobei die Haupt- und Sekundär-Spulen (25a, 25b) auf der Platte (10) der ersten und er zweiten Profilierungsbahn (11, 12) vorgelagert angeordnet sind.
  11. System (100) für die Herstellung einer flexiblen Leitung (2), aufweisend:
    - eine Einrichtung für die Herstellung einer Verstärkungsstruktur (8) gemäß einem der Ansprüche 1 bis 10,
    - eine Vorrichtung (101) zur Herstellung einer inneren Abdichtungshülle (3),
    eine Vorrichtung (102) zur Herstellung einer Zugbewehrungslage (5).
  12. Verfahren für die Anwendung einer Einrichtung (1) für die Herstellung einer Verstärkungsstruktur (8) einer flexiblen Leitung (2) für den Transport eines Erdöl- und/oder Gas-Fluids unter Wasser, aufweisend eine Platte (10), an welcher angeordnet ist, aufweisend die folgenden Schritte:
    - (a) Anordnen einer ersten Profilierungsbahn (11) eines Hauptbands (81a) an einer Platte (10), wobei die erste Profilierungsbahn (11) mindestens einen Haupt-Profilierungskopf (13) aufweist, welcher mindestens ein Paar aus einer unteren und einer oberen Haupt-Rolle (13a, 13b) aufweist, welche dazu eingerichtet sind, das Hauptband (81a) zu biegen,
    - (b) Anordnen einer zweiten Profilierungsbahn (12) eines Zusatzbands (81b) an der Platte (10), wobei die zweite Profilierungsbahn (12) mindestens einen Zusatz-Profilierungskopf (14) aufweist, welcher mindestens ein Paar aus einer unteren und einer oberen Zusatz-Rolle (14a, 14b) aufweist, welche dazu eingerichtet sind, das Zusatzband (81b) zu biegen, wobei das Paar aus einer unteren und einer oberen Zusatz-Rolle (14a, 14b) frei drehbar bezüglich der Platte montiert ist,
    - (c) Antreiben des mindestens einen Haupt-Profilierungskopfs (13)
    - (d) Profilieren des Hauptbands (81a) innerhalb der ersten Profilierungsbahn (11), um ein Hauptprofil (8a) zu bilden, und des Zusatzbands (81b) innerhalb der zweiten Profilierungsbahn (12), um ein Zusatzprofil (8b) zu bilden,
    - (e) Wickeln des Hauptprofils (8a) und des Zusatzprofils (8b) um ein Mittel zum Wickeln, um die Verstärkungsstruktur (8) zu bilden.
EP18732789.5A 2017-06-22 2018-06-22 Anlage zur herstellung einer verstärkungsstruktur eines biegsamen rohrs, verfahren dafür und system mit dieser anlage Active EP3641960B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1700679A FR3068104B1 (fr) 2017-06-22 2017-06-22 Installation pour la fabrication d'une structure de renfort d'une conduite flexible, procede associe et systeme comprenant ladite installation
PCT/EP2018/066814 WO2018234563A1 (fr) 2017-06-22 2018-06-22 Installation pour la fabrication d'une structure de renfort d'une conduite flexible, procede associe et systeme comprenant ladite installation

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EP3641960A1 EP3641960A1 (de) 2020-04-29
EP3641960B1 true EP3641960B1 (de) 2021-07-21

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CN202963081U (zh) * 2012-11-20 2013-06-05 天津德芃科技集团有限公司 一种可挠金属保护套管卷绕机
FR2999269B1 (fr) 2012-12-11 2015-01-16 Technip France Procede de fabrication d'une conduite sous-marine et dispositif pour sa mise en œuvre
GB201306665D0 (en) * 2013-04-12 2013-05-29 Wellstream Int Ltd Elongate tape element and method
US9962750B2 (en) * 2013-08-07 2018-05-08 Bartell Machinery Systems, L.L.C. Systems and methods for forming a pipe carcass using multiple strips of material
FR3017438B1 (fr) * 2014-02-11 2016-10-14 Technip France Conduite flexible de transport de fluide et procede associe
FR3017439B1 (fr) * 2014-02-13 2016-10-14 Technip France Conduite flexible de transport de fluide munie d'un insert en forme de s etendu et procede de fabrication associe
US9782812B2 (en) * 2014-03-26 2017-10-10 Roderick Clarence Minch Method and apparatus for cutting openings in sidewall of spiral pipe

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BR112019027243B1 (pt) 2023-03-21
DK3641960T3 (da) 2021-10-11
CN110997171A (zh) 2020-04-10
WO2018234563A1 (fr) 2018-12-27
FR3068104B1 (fr) 2019-07-19
FR3068104A1 (fr) 2018-12-28
EP3641960A1 (de) 2020-04-29
BR112019027243A2 (pt) 2020-07-14

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